Perhaps you should try some spelling variations:
"support loop integrating services." » "support loop integration services.", "support loop integrated services.", "support loop regulating services.", "support four integrating services.", "support from integrating services.", "support mode integrating services.", "support look integrating services.", "support low integrating services.", "support long integrating services."
"supply pump irrigation schemes." » "supply pump irrigation scheme.", "supply pump irrigation systems.", "supply drip irrigation schemes.", "supply crop irrigation schemes."

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply pump irrigation schemes.") OR ("support loop integrating services."))~.
• Removing quotes may allow a broader search: (( supply pump irrigation schemes. ) or ( support loop integrating services. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply pump irrigation schemes.") or ("support loop integrating services."))*.